Article
Engineering, Chemical
Xiaowei Wu, Zhicheng Yan, Yu Li, Binghua Zhu, Tian Gui, Yuqin Li, Meihua Zhu, Fei Zhang, Xiangshu Chen, Hidetoshi Kita
Summary: Low cost and high performance NaA zeolite membranes were successfully prepared and showed promising industrial application prospects for dehydration of alcohol/water mixtures and other organic water mixtures. These membranes demonstrated high permeation flux, separation factor, and long-term stability, making them suitable for large-scale applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yuting Zhang, Xinfeng Zhu, Shengze Chen, Jinyun Liu, Zhou Hong, Jiacheng Wang, Zhi Li, Xuechao Gao, Rong Xu, Xuehong Gu
Summary: A surface modification method was used to decorate NaA zeolite membrane with TiO2 nanoparticles for more stable water flux in pervaporation of polar aprotic solvents. The TiO2 layer on the membrane hindered aggressive solvent adsorption and allowed water permeation without significant loss in flux, improving separation stability significantly.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yeon-Gyu Lim, Ji-Woong Kim, Chul-U Bak, Young-Deuk Kim
Summary: This study investigated the dehydration performance of vapor permeation (VP) and pervaporation (PV) processes using tubular NaA zeolite membranes experimentally and theoretically. The effects of key operating conditions on the performance of each process were studied, and mathematical models were developed to investigate the separation behavior. The study also proposed and evaluated an integrated system for the purification of volatile organic compounds (VOCs).
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jia-Cheng Guo, Changlong Zou, Ching-Yu Chiang, Te-An Chang, Jiun-Jen Chen, Li-Chiang Lin, Dun-Yen Kang
Summary: The study introduces the use of NaP1 zeolite in membrane pervaporation, showing its high water diffusivity and adsorption selectivity, making it a promising material for alcohol dehydration processes, as demonstrated through experiments and simulations.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Dovletjan Taymazov, Hao Zhang, Wen-Xuan Li, Ping-Ping Li, Fei Xie, Xin-Yu Gong, Sheng-Ning Zhang, Xiao-Hua Ma, Zhen-Liang Xu
Summary: This study presents the fabrication of a hybrid membrane based on molybdenum disulfide material for efficient dehydration of alcohols through pervaporation. The hybrid membrane showed a high permeation flux and separation factor in a specific alcohol aqueous solution. Various characterization techniques were used to investigate the morphology and physicochemical properties of the fabricated membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Gang Li, Shanhong Ma, Feng Ye, Yiwei Luo, Shuanshi Fan, Xuemei Lang, Yanhong Wang, Liang Zhou
Summary: The use of a T-type zeolite membrane for bio-oil dehydration through pervaporation shows high selectivity in removing water, but fouling in bio-oil leads to decreased permeation flux. After calcination at 220 degrees C, the fouled membrane can be effectively regenerated, demonstrating excellent reusability and chemical stability in the bio-oil system.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Shun Aoyama, Hiroki Nagasawa, Masakoto Kanezashi, Toshinori Tsuru
Summary: The effects of plasma treatment time on the gas permeation and pervaporation dehydration properties of organosilica membranes were investigated. The study found that increasing plasma modification time resulted in a decrease in pore size, leading to an increased He/N2 permeance ratio. The H2O/EtOH permeance ratio also increased from about 20 to over 1000 as the plasma modification time increased due to changes in pore structure and water adsorption properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Hong Joo Lee, Seong-Joong Kim, Yeojin Kim, Hosik Park, You-In Park, Seung Eun Nam
Summary: The study focuses on the development of nanofiltration ceramic hollow fiber membranes with improved water and organic solvent permeation performance. By simplifying the manufacturing process and using appropriate materials, the newly developed membrane has shown excellent permeability and separation properties, demonstrating potential effectiveness for organic solvent nanofiltration applications.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Chemical
Geng-Sheng Lin, Yi-Rui Chen, Ta-Hsuan Chang, Tse-Chiang Huang, Guo-Liang Zhuang, Wei-Zhi Huang, Yu-Cheng Liu, Hideto Matsuyama, Kevin C-W Wu, Kuo-Lun Tung
Summary: This study successfully coated a ZIF-8/PVA mixed matrix membrane onto alpha-alumina hollow fibers for ethanol dehydration using pervaporation technique. The high loading of ZIF-8 in the MMM resulted in improved performance in terms of permeate flux and separation factor. Additionally, the use of hollow fiber support with thinner coating thickness showed promising potential for scale-up production.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Jiacheng Wang, Jiaqi Zhang, Zhou Hong, Xuechao Gao, Xuehong Gu
Summary: This study investigates the efficient production of fuel ethanol using distillation-Vapor Permeation (VP) coupling technique. Comparative analysis shows that coupling with a three-column distillation technique and VP membrane can save steam consumption. The ethanol content and operation pressure was found to be crucial factors affecting energy efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Yasuhisa Hasegawa, Chie Abe, Ayumi Ikeda
Summary: In this study, a high-silica chabazite (CHA) type zeolite membrane was prepared on a porous alpha-Al2O3 support tube through secondary growth of seed particles. The dehydration performances of the membrane were classified into three types based on the types of organic solvents used, with different influences on permeation and separation efficiencies discussed. High permeation fluxes and separation factors were observed for certain organic solvents due to preferential water adsorption, while others showed relatively lower performance due to adsorption of the solvents themselves. Adsorption isotherms of water, methanol, ethanol, and 2-propanol were determined to examine the impact of organic solvents on membrane performance.
Article
Biochemistry & Molecular Biology
Yasuhisa Hasegawa, Wakako Matsuura, Chie Abe, Ayumi Ikeda
Summary: In this study, an NaA-type zeolite membrane was prepared and its dehydration performances for various organic solvents were evaluated. The membrane exhibited high dehydration performances for alcohols and low boiling solvents, while the performances decreased significantly for high boiling solvents.
Article
Engineering, Chemical
Peng Du, Jieyu Song, Xuerui Wang, Yuting Zhang, Jixian Xie, Gang Liu, Yongli Liu, Zhenwei Wang, Zhou Hong, Xuehong Gu
Summary: Efficient hydrogen separation is crucial from the cracked tail gas of ethylene plant. DD3R zeolite membranes were developed for this purpose, showing high selectivity and stability under harsh conditions. The efficient scale-up synthesis method led to the production of high-quality membranes suitable for industrial applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yangcheng Dou, Guiqin Yi, Liyun Huang, Yichang Ma, Chong Li, Aimei Zhu, Qinglin Liu, Qiugen Zhang
Summary: In this study, TFC-HFMs with excellent performance were fabricated and exhibited high permeate flux, excellent separation performance, and good stability for ethanol dehydration, suggesting their potential application in the field.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Norihiro Suzuki, Rumi Katsukawa, Naoya Ishida, Yuta Shiroma, Tsugumi Kagaya, Takeshi Kondo, Makoto Yuasa, Chiaki Terashima, Akira Fujishima
Summary: In this study, we propose a two-step pervaporation system using a high-silica CHA membrane for the extraction and condensation of formic acid produced by the electroreduction of CO2. The separation of electrolyte ions and water molecules is achieved through a desalination process followed by a dehydration process.
Article
Chemistry, Applied
Ya-Lan Wang, Xin-Xin Wang, Yi-An Zhu, Ka-Ke Zhu, De Chen, Xing-Gui Zhou
Article
Chemistry, Physical
Tingting Zhang, Zhongxian Liu, Yi-An Zhu, Zhicheng Liu, Zhijun Sui, Kake Zhu, Xinggui Zhou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Engineering, Chemical
Miao Zhai, Hongxin Ding, Shu Zeng, Jiuxing Jiang, Shutao Xu, Xiujie Li, Kake Zhu, Xinggui Zhou
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Physical
Xiaoling Zhao, Wei Liu, Jiaqi Wang, Weimin Yang, Xuedong Zhu, Kake Zhu
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Multidisciplinary
Xiaoling Zhao, Shu Zeng, Xueliang Zhang, Quanzheng Deng, Xiujie Li, Wenguang Yu, Kake Zhu, Shutao Xu, Jichang Liu, Lu Han
Summary: Controlling crystal size and shape is crucial for the synthesis of hierarchical zeolites with improved mass transport and catalytic properties. The reported single-step crystallization method using structure-directing agents resulted in aligned nanocrystals with enhanced propene selectivity and catalyst lifetime in dimethyl ether-to-olefins conversion, demonstrating the potential for rational synthesis of hierarchical zeolitic materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Ya-Xin Yu, Jie Yang, Ka-Ke Zhu, Zhi-Jun Sui, De Chen, Yi-An Zhu, Xing-Gui Zhou
Summary: Dry methane reforming (DMR) is a promising technique that aims to convert greenhouse gases into useful chemical feedstocks. By analyzing catalytic activity trends and screening alloy catalysts, it may help address the issue of greenhouse gas conversion.
Article
Chemistry, Physical
Jie Yang, Erlend Bjorgum, Hui Chang, Ka-Ke Zhu, Zhi-Jun Sui, Xing-Gui Zhou, Anders Holmen, Yi-An Zhu, De Chen
Summary: Research has shown that the dynamic nature of active sites on La-Fe-based perovskites in chemical looping methane oxidation is influenced by the Fe coordination environment (and hence the oxygen vacancy concentration), which is the key parameter governing the catalyst selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Chemical
Zi-Ming Zhan, Xin Zhang, Yin-Xin Fang, Yong-Jian Tang, Ka-Ke Zhu, Xiao-Hua Ma, Zhen-Liang Xu
Summary: Polyamide nanofiltration membranes were fabricated with enhanced desalination and fouling resistance by grafting a novel polyquaternium salt, leading to significant improvement in permeability and better retention of divalent ions. This method, featuring low cost and easy grafting process, shows great potential in water softening applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Hui Chang, Gong Cheng, Ka-Ke Zhu, Zhi-Jun Sui, De Chen, Xing-Gui Zhou, Yi-An Zhu
Summary: Understanding the replenishment process of reduced perovskites is important in the rational design of new oxygen carriers. This study investigated the O2 dissociation and oxygen/vacancy migration mechanisms on defective and pristine LaBO3 surfaces using DFT + U calculations. The study found that the replenishment of reduced surfaces is achieved through different mechanisms depending on the vacancy concentration. Linear scaling relations were also established to guide the investigation of better oxygen carriers.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Environmental
Fan Yang, Qiuming Zhou, Jia Wang, Hongxin Ding, Xuedong Zhu, Kake Zhu, Weibin Fan
Summary: The synthesis of SAPO-31 using a low-cost, barely soluble di-noctylamine as organic structure directing agent (OSDA) in a water/toluene biphasic media is reported. The resulting product is a hierarchically porous material built up of self-assembled nanocrystals with enhanced diffusion property and comparable acidity to a standard sample. The synthetic protocol expands the toolkit of candidate OSDAs and offers guidance towards manipulating hydroisomerization product slates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yuchen Wang, Jisheng Yu, Fan Yang, Yitao Zhao, Jianguo Zhuang, Xuefeng Lu, Xuedong Zhu, Kake Zhu
Summary: This study demonstrates that 6-amino-1-hexanol (AH) can be used as an organic structure-directing agent (OSDA) for the synthesis of commercially viable ZSM-22. Compared to the commonly used 1,6-diaminohexane (DAH), ZSM-22 derived from AH shows improved crystallinity and more intermediate-to-strong acid site, attributed to stronger host-guest interactions. Additionally, AH accelerates the crystallization process. ZSM-22 catalysts derived from AH exhibit enhanced catalytic activity and isomer yield in the hydroisomerization of n-heptane.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Yunlu Li, Liyuan Li, Hongliang Zhao, Jichang Liu, Kake Zhu
Summary: Researchers have discovered that functionalizing the surface of mesoporous silica MCM-41 can immobilize Ag+ on the material, transforming it from an unselective porous solid into an olefin selective molecular sieve material suitable for liquid phase binary mixture separations. Results show that ionically anchored Ag+ with intact complexation orbitals outperform coordinatively immobilized Ag+ in terms of antileaching property, olefin separation factor, and recyclability. The use of small mesopore size can boost olefin adsorption selectivity by compressing the available space for access of paraffins.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yingjie Zhou, Quanzheng Deng, Donghao Deng, Wei Liu, Miao Zhai, Zhendong Wang, Lu Han, Kake Zhu
Summary: Tailoring zeolite crystals morphology by designing organic structure directing agents (OSDAs) can enhance their mass transport and catalytic properties. A polycation was designed as an alternative to the commonly used OSDA, which resulted in different morphologies of synthetic products depending on Na+ and Al contents in the initial sols. The control syntheses using polycations with different chain spacer and branching lengths highlighted the matching between the length of the methylene chain spacer and the length between micropore intersections for tailoring crystal anisotropic growth. This OSDA design concept opens up new possibilities for manipulating zeolite structures to enhance their properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Hongxin Ding, Qiuming Zhou, Junfen Li, Kake Zhu, Weibin Fan
Summary: The study demonstrates that using a hydrophobic molecule as an organic structure-directing agent can lead to the synthesis of hierarchically porous SAPO-31 in biphasic toluene/water media without altering its morphological features. This method not only offers a new pathway for zeolite synthesis, but also significantly improves the isomer yield of the catalysts.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Zhongxian Liu, Feifan Gao, Yi-An Zhu, Zhicheng Liu, Kake Zhu, Xinggui Zhou
CHEMICAL COMMUNICATIONS
(2020)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)